Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

pesticide

play
noun pes·ti·cide \ˈpes-tə-ˌsīd\

Simple Definition of pesticide

  • : a chemical that is used to kill animals or insects that damage plants or crops

Full Definition of pesticide

  1. :  an agent used to destroy pests

pes·ti·ci·dal \ˌpes-tə-ˈsī-dəl\ adjective

Circa 1925

First Known Use of pesticide

circa 1925


PESTICIDE Defined for Kids

pesticide

play
noun pes·ti·cide \ˈpe-stə-ˌsīd\

Definition of pesticide

  1. :  a substance used to destroy pests (as insects or weeds)




Medical Dictionary

pesticide

play
noun pes·ti·cide \ˈpes-tə-ˌsīd\

Medical Definition of pesticide

  1. :  an agent used to destroy pests





Seen and Heard

What made you want to look up pesticide? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 12, 2016

of, relating to, or suggestive of marble

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image33683556

How much does a batman (the Turkish unit of measurement) weigh?

196.5 pounds 100 pounds 16.96 pounds 2.2 pounds
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ